PHARMACEUTICAL REGULATING SEAT VALVE NLR

Application

The NLR valve is a proportional pneumatically actuated valve designed for flow control in
installations of the pharmaceutical industries.
It is widely used to control the pressure of a water loop with a pressure transmitter (PID) when the loop is controlled by neither a flowmeter nor a frequency converter of the pump.

Operating principle

The position sensor instantly controls the operating position to keep the valve in the
position determined by the user (PD function) or by a process parameter (PID function).
The operation position can be programmed by:

- a standard input signal sent by en external element (e.g. a sensor).

- an internal controller integrated into the positioner. The signal is sent form a keyboard. 

Diseño y características

Sanitary design according to 3A standards.
Normally closed valve (standard version).
Equal percentage regulation shaft.
360º adjustable body.
Compact design.
Dual function positioner:
-PD: position controller
-PID: process controller
Easy assembly/disassembly by loosening the clamp.
Standard connections: Clamp OD.
Traceability of components.

Materials

Parts in contact with the product       AISI 316L
Other stainless steel parts                   AISI 304
Gaskets                             EPDM according to FDA 177.2600
Internal surface finish                          Ra ≤ 0,5 μm
External surface finish                         bright polish

Options

Steam barrier (if shaft sterilisation is required).
Jacketed body.
Larger actuator sizes.
Gaskets: NBR or FPM.
Connections: weld.
Material and surface roughness certificates.

Technical specifications

Available sizes                    DN 1" - DN 4"
Working temperature       -10 ºC to +121 ºC (EPDM)      14 ºF to 250 ºF 
                                           +140 ºC (SIP, max. 30 min)    284 ºF
Max.working pressure      10 bar 145 PSI
Compressed air pressure  6-8 bar 87-116 PSI
Air supply connections      G1/8" (BSP)
Voltage                               24 V DC
Signal                                  4...20 mA 
                                           0...10 V (optional)

 CERTIFICATE               

Data sheet	ESENFRITDERUPL
Instructions manual	ESENFRITDERUPL